Traveling crane.



.No- 8 .407. PATENTED APR. 1a, 1907; I v. o. STROBEL & A. B. HOGRBBE.

TRAVELING CRANE. APPLIUATION FILED JAN.23.1907,

2 SHEETS-SHEET 1.

a I I wessesz- I 8 Inventors Attorney PATENTEDAPR.16,1907, v. 0.STROBELdz A. E. HOGRBBB.

TRAVELING CRANE. APPLICATION FILED JAN.23.1907L I 2SHBETS-SHEBT 2.

Inventors, w. 5%

0. warm Witnesses M.S.GJ,Z

UNrrEn srAT s PATENT oEEic VICTOR O, STROBEL AND ARTHUR E. HOGREBE, OFPHILADELPHIA, PENN- SYLVANIA, ASSIGNORS TO NILES-BEMENT-POND COMPANY, OFJERSEY CITY, NEW JEEsEY.

TRAVELING CRANE.

Specification of Letters Patent.

Patented April 16, 1907.

Application filed January 23, 1907- Serial No. 353.727.

T0 it, whom it may concern:

Be it known that we, VICTOR O. STROBEL and ARTHUR E. HocEEBE, citizensof the United States, and residents of Philadelphia, Philadelphiacounty, Pennsylvania, have invented certain new and useful Improvementsin Traveling Cranes, of which the following is a specification.

This invention, while applicable to traveling cranes generally, has beendevised with special reference to traveling cranes employed in thehandling of ladles; and the improvements will be readily understood fromthe following description, taken in connection with the accompanyingdrawings, in which Figure 1 is an end elevation of the bridge ofatraveling crane embodying our invention, and Fig. 2 a side elevation ofa portion of the same.

In the drawings, 1 indicates the usual overhead main-track support for atraveling crane; 2, the rails of the main track; 3, the bridge,considered as a whole; 4, the end "irders of the bridge; 5, the mainwheels of the bridge, the same running on the maintrack rails 6, themain cross-girders of the bridge, the same being connected to andsupported at their ends by the end girders; 7, the main cross-rails ofthe bridge, supported on the main cross-girders 8, the main trolley,traveling on the main cross-rails 7 9, the wheels of the main trolley;10, the hoistingdrum of the main trolley, the same being double-endedfor the reception of two hoisting-ropes, the illustration showing thetwo ends of the drum as being separated from each other upon theircommon shaft; 1]., the main bridle; 12, a hook at each end of the mainbridle, these hooks being adapted to engage the trunnions of a ladle, asusual in ladlecranes; 13, the main hoisting-ropes, one for each end ofthe main bridle, one rope being connected with one end of the mainbridle and the appropriate end of the main hoisting-drum, while theother rope is con nected with the other end of the main bridle and mainhoisting-drum; 14, the secondary cross-girders of the bridge, thesegirders lying parallel with and between the main crossgirders of thebridge and having their ends connected with and supported by the endgirders of the bridge, the tops of these girders being some distancebelow the tops of the main cross-girders, the secondary cross-girdersbeing preferably connected with each other by intermediatecross-bracing; 15, the secondary trolley, the same running on railscarried by the tops of the secondary crossgirders; 16, the secondaryhoisting-drums, the same being carried by the secondary trolley andhaving portions projecting into the spaces between the main andsecondary crossgirders, these secondary hoisting-drums be ing arrangedfor rotation in unison; 17, the secondary hoisting-ropes, one fallingfrom each secondary hoisting-drum and through the appropriate spacebetween the main and secondary cross-girders; 18, the secondary Abridle, having each of its ends connected with one of the secondaryhoisting-ropes; 19, the hook of the secondary bridle, the same beingadapted to engage or be connected with the tailpiece of a tipping ladle,and 20 a shield carried by the bridge under the space between thesecondary cross-girders.

The motors and accessory mechanism for moving the bridge and thetrolleys and for turning the hoisting-drums call for no peculiarities inconnection with our invention and are therefore not illustrated. Themain trolley is arranged to travel at such height rela tive to thesecondary trolley that the two trolleys may travel across the bridgewithout interfering with each other. All the hoisting-ropes, main andsecondary, fall through the spaces between the main cross-girders andsecondary crossgirders, thus permitting the secondary crossgirders to beintermediately braced to any extent desired and also permitting thepresence of shield 20, which protects all of the parts on the secondarytrolley and many of the parts on the main trolley, from the heat risingfrom a ladle sus-' pended from the bridge, and at the same time thesecondary as well as the main hoisting-ropes are kept in planes outsidethe specially-hot region directly above the suspended ladle. Forordinary hoisting purposes either trolley may be used independently, andfor work with tipping ladles the ladle may be hoisted and held by themain trolley and its accessories and be tipped by the secondary trolleyand its accessories.

We claim 1. A traveling crane comprising a bridge having a pair of maincross-girders parallel with each other and a pair of secondarycrossgirders parallel therewith, rails on the tops of said girders, amain trolley traveling on the rails of the main cross-girders, a doublemain hoisting-drum mounted on the main trolley, main hoisting ropesconnected with the main hoisting-drum and falling through the spacesbetween the main and secondary cross-girders, a secondary trolleytraveling on the rails of the secondary crossgirders, secondaryhoisting-drums mounted on the secondary trolley and having portionsprojecting into the planes of the spaces between the main and secondarycross-girders, and secondary hoisting-ropes connected with the secondaryhoisting-drums and falling through the spaces between the main andsecondary cross-girders, combined substantially as set forth.

2. A traveling crane comprising a bridge having a pair ofmaincross-girders parallel with each other and a pair of secondarycrossgirders parallel therewith, rails on the tops of said girders, amain trolley traveling on the rails of the main cross-girders, a doublemain hoistin drum mounted on the main trolley, main oisting-ropesconnected with the main hoisting-drum and falling through the spacesbetween the main and secondary cross-girders, a secondary trolleytraveling on the rails of the secondary cross-girders, secondaryhoisting-drums mounted on the secondary trolley and having portions projecting into the planes of the spaces between the main and secondarycross-girders, secondary hoisting-ropes connected with the secondaryhoisting-drums and falling through the spaces between the main andsecondary cross-girders, and cross bracing extending between thesecondary cross-girders, combined substantially as set forth.

3. A traveling crane comprising a bridge having a pair of maincross-girders parallel with each other and a pairof secondarycrossgirders parallel therewith, rails on the tops of said girders, amain trolley traveling on the rails of the main cross-girders, a doublemain hoisting-drum mounted on the main trolley, main hoisting-ropesconnected with the main hoisting-drum and falling through the spacesbetween the main and secondary cross-girders, a secondary trolleytraveling on the rails of the secondary cross-girders, secondaryhoisting-drums mounted on the secondary trolley and having portions projecting into the planes of the spaces between the main and secondarycross-girders, secondary hoisting-ropes connected with the secondaryhoisting-drums and falling through the spaces between the main andsecondary cross-girders, anda shield supported by the secondarycross-girders between the secondary hoisting-ropes, combinedsubstantially as set forth. I

VICTOR O. STROBEL. ARTHUR E. I-IOGR-EBE. Witnesses:

G. C. ALLEN, WM. H. KINKAID

